Type casting machine



May 3, 1938.. R. J. WOODRUFF TYPE CASTING MACHINE Filed Jan. 30, 19365356/2 JMadrzz/f ATTORNEY bo .a HQl h .obig t t ei v nis t pv qn la-tlat hin a p r tu 9 t is, tch-arac er,

Patented May 3, 1938 r PATENT oFFicE nobrtc. Woodruff; Duluth, Minn;

,The invention relates to a type casting nachineand more particularly toa printing plate casting apparatus. M Theprimary; object of theinventioniis the provision of-a machine orapparatus of-this-char acter,wherein through the assemblyrof matrices within a casting box a typeplatecan be readily and easily formed and in this manner eliminating thenecessity of the setting of; individual type for 0 the production ofaform as in the setting of type it is required to handle astick and alsothe blocking out with spacing material andthus by the use of the machineor apparatus a type plate ca i re t d i d at h. a iwith m nimum wher n esame. iit l ens u ion is i ll form soas torender it readilyportable,.easy;to

ha d e and ssurin dis t h n th m king -9 producing of type platesforform printing,

j A f r h r. ob t. oaths in ent nis th Previjs a ma in o a p at QUhiehar eter which im e-i t en t u t e i .thqrqu h y eliab 'ewa e eisei..tsspurn se m n miz n procedure in the printing art strq g durable, WEEKlEKPQW N t iill fi i l i' p With these and other objects in view, theinvention consists in the features of construction, combination andarrangement of parts as will be hereinafter more fully described,illustrated in the accompanying drawing, which discloses the preferredembodiment of the invention and pointed out in the claims hereuntoappended.

5 In the accompanying drawing: 7

Figure 1 is a front elevation of a machine or apparatus constructed inaccordance with the invention.

Figure 2 is a sectional view on the line 2-2 4 of Figure 1 looking inthe direction of the arrows.

Figure 3 is a top plan view.

Figure 4 is a sectional view on the line 4-4 of Figure 3 looking in thedirection of the arrows.

Figure 5 is a perspective view of the hold-down 45 or follower plate.

Figure 6 is a perspective view of the stick employed with the machine orapparatus.

Figure 7 is a fragmentary vertical sectional view showing a slightmodification of the inven- 50 tion.

Similar reference characters indicate corresponding parts throughout theseveral views in the drawing.

Referring to the drawing in detail, A desig- 55 nates a base from whichrises spaced perpendicu- "to. fees, as; 'No'. 61,591

(errata?) II swingingly connecting a casting box l2 between saiduprightsor posts. This casting box l2 has formed therein a cavity l3which opens through one side of said: box 'and adapted to be locatedwithin this cavity a group of stacked matrices 14. each having theletteror numeral forming face l5 so that when molten lead or typematerial in a pouring state is delivered into the cavity 13 a printingplate l6 havinga raised type face will be created. z 1 p H H The cavityl3 at one sidethereof is confronted by a printers stick receiving notch,ll for accommodating a stick is of that type employed by printers whensetting individualtype} it bei'ng preferable to have thestickglfl fofwedge formationso that when the type. material freezes :within thecasting box easy removal'of the plate 1 I6 is assured; The bottom olfthe, stick I 8 is tapered towards its leadingedge as may be seen by aninspectionkof Figures 2and 6. @Such an arrangement assists in thepositioning of the stick, the maintaining of the stick in itsproperposition and'the removing of the stick.

, Adapted to be superimposed uponthelgroup matrices 1.4 asjconfinedwithinlthecavity l 3 in the box Ills"a hold-downorfollowerblock or plate Q BI t avin a, Fil in h l mama w t mowed type forming'material is "poured from a ladle it can flow through the hole 20beneath the block or plate IQ for the formation of the type platethrough the instrumentality of the matrices M within the cavity I3 01'said box. 7

Bridging the box [2 at the open side of the cavity I3 is an adjustableyoke 2|, it having the notches 22 for engagement with retaining pins 23externally of the box [2 and projecting from opposite flat sidesthereof. This yoke 2| has integrally joined therewith a turn buckleextension rod 24, itbeing sectional and one section is carried by theyoke while the other section is engaged with the follower plate or blockl9 which latter at opposite ends carries guide ears 25 operating in keyways 26 in opposite walls of the cavity 13 of the box [2. By adjustmentof the turn buckle extension rod 24 the block or plate 19 can be clampedin place superimposed upon the matrices M to hold the same grouped andin casting position for the casting of a type plate l6 for form printingwork.

Adapted to be placed upon the base A is a heater 21, the flame from itsburner 28 being positioned for play upon the casting box l2 to heat thecontents of the cavity iii in the formation of the type plate.

In Figure lot the drawing there is shown a slight modification whereinthe casting box 29 has held within its cavity 30 a cone or filler piece3| for effecting in the type plate 32 a filling space 33 for type matterwhere it is required to change the printing form other than that castwith the said plate 32.

The purpose of heating the casting box 12 to the proper degree is toprevent the cast type plate from becoming chilled too quickly whichwould result in a poor cast, .theheater being of 'anyapproved type.

In the use of the machine or apparatus it is, of course, understood thatthe stick I8 is adapted to accommodate the matrices in the settingthereof similarly to the hand setting of individual type and after thesetting of the matrices the stick [8 is placed within the notch in thecavity I-3 of the casting box 12 as is clearly shown inFigure 2 of thedrawing and then such group of matrices M are clamped by the plate-"orblock'lfl and iinally the molten type'forming-material is poured asabove set forth for the creation of a'type plate forform printingpurposes.

The casting box I2 is held in a position to have the cavity 13' openuppermostthrough the medium of a releasable latch 34 which is fitted inone of the uprights I0 rising from the base A of the machine orapparatus. 'When the latch 34 is released the box l2 can be turned overfor the delivery of the cast type plate l6;

What is claimed is: 1. A type castingm'achinecomprising a casting boxhaving a cavity therein; a; printers'stick having a bottom, two closedends, one closed side and one open side, said stick having a thicknessless than the-width of the cavity in the casting box and adapted to bereceived by'said cavity .with the bottom of-the stick'engagingone sideof matrices in stacked formation with thelowermost matrix resting uponthe closed side of the stick, the letter forming faces of the matricesfacing said opposite side wall of the cavity and being spaced therefrom,the portion of said cavity not occupied by the stick and matricesadapted to receive molten lead, whereby the lead is brought into contactwith the letter forming faces of the matrices.

2. A type casting machine comprising a casting box having a cavitytherein, a printers stick having a bottom, two closed ends, one closedside and one open side, said stick having a thickness less than thewidth of the cavity in the casting box and adapted to be received bysaid cavity with the bottom of the stick engaging one side wall of thecavity and being spaced from the opposite side wall of the cavity andhaving its closed side resting on the bottom of the cavity and the openside of the stick facing the open end of the cavity, said stick adaptedto receive a plurality of -matrices in stacked formation with thelowermost matrix resting upon the closed side of the stick,

said opposite side wall of the cavity and being spaced therefrom, theportion of said cavity not occupied by the stick and matrices adapted toreceive molten lead, whereby the lead is brought into contact with theletter forming faces of the matrices, the bottom of said stick beingtapered in the direction of its movement into the cavity in the castingbox.

3. A'type'casting machine comprising a casting box having a cavitytherein, a printers stick having one open side and a thickness less thanthe width of the cavity in the casting box and adapted to be received bysaid cavity with the bottom of the stick engaging one side wall of thecavity and being spaced from the opposite side wall of the cavity, saidstick adapted to receive aplurality of matrices in stacked formationwith the letter forming faces of the matrices facing said opposite sidewall of the cavity andbeing spaced therefrom, the portion of said cavitynot occupied'by the stick and matrices adapted to receive molten lead,whereby the lead is brought into contact with the'letter forming facesof the matrices, the bottom of said stick being tapered in the directionof its movement into the cavity in the casting box. I

ROBERT J. WOODRUFF.

